Calculating MONOBLOC
spacer requirements
SALES AND CUSTOMER SERVICE
Vancouver
Tel (604) 534-8631
Fax (604) 534-7616
Toronto
Tel (905) 670-7676
Fax (905) 670-5295
To determine the type and quantity of MONOBLOC spacers
Calgary
Tel (403) 236-8333
Fax (403) 279-8443
Montreal
Tel (514) 337-2624
Fax (514) 337-7886
Edmonton
Tel (780) 415-5300
Fax (780) 415-5358
Saint John
Tel (506) 633-7473 (PIPE)
Fax (506) 633-8720
Winnipeg
Tel (204) 633-3111
Fax (204) 633-3075
St. John’s
Tel (709) 747-7473 (PIPE)
Fax (709) 368-9111
required, you need to know:
• Duct size
• Minimum required spacing between the ducts in the duct
bank as specified by the engineer or project manager
• Duct bank configuration
• Duct spacer spacing: IPEX recommends every five
to seven feet, closer for larger duct banks and larger
sizes of ducts
Underground
Duct Spacers
Toll free in Canada
(866) 473-9462 (IPEX INC)
www.ipexelectricalinc.com
• Overall length of the duct bank
About the IPEX Group of Companies
For example:
As leading suppliers of thermoplastic piping systems, the IPEX Group of
Companies provides our customers with some of the world’s largest and most
comprehensive product lines. All IPEX products are backed by more than 50
years of experience. With state-of-the-art manufacturing facilities and
distribution centers across North America, we have established a reputation
for product innovation, quality, end-user focus and performance.
• 4-inch duct
• 2-inch spacing
between ducts
specified by engineer
Markets served by IPEX group products are:
• Duct bank configuration
• Electrical systems
– 4 wide by 3 high
• Spacer Separation – 5 feet
• Telecommunications and utility piping systems
• Length of duct bank – 500 feet
• PVC, CPVC, PP, ABS, FR-PVDF, PEX and PE pipe and fittings (1/4" to 48")
• Industrial process piping systems
• Municipal pressure and gravity piping systems
Determine the type of
MONOBLOC spacer required
• Plumbing and mechanical piping systems
• PE Electrofusion systems for gas and water
• Industrial, plumbing and electrical cements
Based on this example, the MONOBLOC spacer required is:
4
x
2
x
2
Size of
Duct
(inches)
x
Vertical
Spacing
(inches)
x
Horizontal
Spacing
(inches)
x
3*
4-Way
Ground
Number
of Ways
x Clearance
(inches)
• Irrigation systems
Products manufactured by IPEX Electrical Inc.
E L E C T R I C A L
S Y S T E M S
This literature is published in good faith and is believed to be reliable.
*Ground clearance is a characteristic of the specific spacer selected.
Consult the MONOBLOC price list.
However, it does not represent and/or warrant in any manner the information
and suggestions contained in this brochure. Data presented is the result of
laboratory tests and field experience.
Calculating the number of
MONOBLOC spacers required
For fast, easy, economical installation
of underground duct banks
A policy of ongoing product improvement is maintained. This may result in
modifications of features and/or specifications without notice.
1. Count the number of MONOBLOC spacer rows
(Three-high in this example)
2. Multiply the number of rows by the overall length of the
DISTRIBUTED BY
duct bank divided by the spacing separation distance
3. For example: 3 x (500' / 5') = 300 spacers (4x2x2x4)
3
x
500
/
5'
Number
of Rows
x
Overall length
of duct bank
/
Spacer
separation
• Widest range of spacers available
• Quick, simple installations
• Lowest cost duct spacer system available
w w w. i p exe l e c t r i c a l . c o m
BRELMBIP080604R © 2009 IPEX EL0033C
We build tough products for tough environments®
MONOBLOC Spacers –
The ideal solution for underground
duct bank installation
• 29 strong, lightweight spacer configurations
• Re-bar holder slot simplifies installation of re-bar
• Concrete-saving base spacer – 4x3x3x3
The fast, easy, low-cost solution for underground electrical and telecommunications duct installations
is now even better.
You can choose from 29 different configurations, so the right MONOBLOC spacer is
available for virtually any duct installation job.
Revolutionary approach
29 CONFIGURATIONS
Unique base spacer saves concrete
2" X 1 /2" X 1 /2" X 3"
(2 way)
3" X 11/2" X 11/2" X 3"
(2 way)
31/2" X 1" X 1" X 2"
(2, 3, & 4 way)
4" X 1" X 1" X 2"
(1, 2, 3, & 4 way)
4" X 11/2" X 11/2" X 3"
(2, 3, & 4 way)
Re-bar innovation
4" X 2" X 2" X 3"
(1, 2, 3 & 4 way)
Reinforcing re-bar slots have been incorporated into 12 of the
4" X 3" X 3" X 3"
(2, 3 & 4 way)
4" X 3" X 3" X 4"
(2, 3 & 4 way)
41/2" X 2" X 2" X 3"
(1, 2, & 3 way)
5" X 11/2" X 21/8" X 35/8"
(1 way)
5" X 11/2" X 11/2" X 3"
(2, 3, & 4 way)
1
You can lower both material and labour costs with the 4x3x3x3
1
MONOBLOC base spacer. By reducing concrete requirements one inch
in duct bank encasements, this base spacer can save four cubic yards
of concrete in a 500-foot long, 30-inch wide duct bank.
29 MONOBLOC spacers. These provide better alignment and more
uniform distribution of re-bar in a duct bank, making duct bank
installation even faster and easier.
*consult the IPEX Monobloc price list for product codes and pricing
A
A
E
C
C
A
B
C
B D
D
D
E
Ways
Length
E
Ways
Length
Length
MONOBLOC spacer
MONOBLOC with re-bar slots (multi-purpose)
MONOBLOC with re-bar slots (base)
The low-cost, high-performance answer
MONOBLOC spacers are also 10 times lighter than concrete
spacers which makes them easier to work with, reducing labour
Developed by IPEX, a world leader in piping systems, MONOBLOC
costs even more.
spacers are easier to handle, faster to install and cost significantly
less than conventional vertical interlocking or concrete spacers.
Because MONOBLOC spacers do not vertically interlock, the spacers
Use fewer spacers
can be offset from row to row, creating a more stable duct bank
using fewer spacers.
A typical duct bank installation can be completed with
In addition to the significant savings in material costs, labour
two-thirds fewer spacers using MONOBLOC. For example,
costs are also dramatically reduced by eliminating assembly
only 300 one-piece MONOBLOC spacers are needed for
time needed for interlocking spacers. MONOBLOC spacers
a 500-foot long bank of four-inch duct, 4 wide by 3 high.
are supplied as one-piece units and are very simply installed.
A total of 1,200 spacers (base and intermediate) would be
required for the same installation if interlocking spacers
were used – a 60 per cent savings in material costs alone.
The right solution!
Innovative design
Tough and resilient
Twenty-six of the 29 different MONOBLOC spacers can be used
Made of resilient, high-density polyethylene, MONOBLOC spacers
interchangeably as either a base or intermediate unit.
easily withstand inclement weather and severe conditions normally
found on a construction site. Losses caused by breakage are
Time-consuming calculations involved in determining base and
virtually eliminated. MONOBLOC spacers are resilient at extremely
intermediate requirements for interlocking spacers are eliminated.
low temperatures. Tough and flexible, MONOBLOC spacers are
It becomes easy to ensure that the right number of spacers are
immune to corrosion, rust, mildew and humidity.
available at the job site so that work proceeds smoothly.
The ingenious design adapts to the inherent irregularities and
contours of a trench with a wide support surface to ensure even
Specify MONOBLOC Underground
Duct Spacers
load distribution.
Lightweight, durable and easy-to-install. Choosing MONOBLOC over
Plus, because MONOBLOC spacers fit the duct pipe and not
conventional spacers will significantly reduce the cost of your next
each other, there is no concern about possible conflicts between
underground electrical and telecommunications duct installation.
interlocking methods.
Specify MONOBLOC!
Maximum flexibility
Pouring concrete
Different sized MONOBLOC spacers can be easily grouped to create
Ensure the duct bank is stable and secure before pouring
the required width of duct bank.
concrete. Secure by looping the entire duct bank with tie
wire or by securing the ducts to the spacers and reinforcing
For example, two 2-way spacers can be used in combination to
bars, if used.
create one 4-way spacer. A 6-way duct bank can be created using
one 2-way spacer and one 4-way spacer or two 3-way spacers.
Avoid “harsh pours”
of concrete directly
A 6-way duct
bank is created
using one 2-way
spacer and
one 4-way
spacer
on the duct bank
assembly. Use a
diverting mechanism
during the pour to
ensure the duct
bank assembly
is not disturbed.
Calculating MONOBLOC
spacer requirements
To determine the type and quantity of MONOBLOC spacers
required, you need to know:
• Duct size
• Minimum required spacing between the ducts in the duct
bank as specified by the engineer or project manager
• Duct bank configuration
• Duct spacer spacing: IPEX recommends every five
to seven feet, closer for larger duct banks and larger
sizes of ducts
• Overall length of the duct bank
For example:
• 4-inch duct
• 2-inch spacing
between ducts
specified by engineer
• Duct bank configuration
– 4 wide by 3 high
• Spacer Separation – 5 feet
• Length of duct bank – 500 feet
Determine the type of
MONOBLOC spacer required
Based on this example, the MONOBLOC spacer required is:
4
x
2
x
2
Size of
Duct
(inches)
x
Vertical
Spacing
(inches)
x
Horizontal
Spacing
(inches)
x
3*
4-Way
Ground
Number
of Ways
x Clearance
(inches)
*Ground clearance is a characteristic of the specific spacer selected.
Consult the MONOBLOC price list.
Calculating the number of
MONOBLOC spacers required
1. Count the number of MONOBLOC spacer rows
(Three-high in this example)
2. Multiply the number of rows by the overall length of the
duct bank divided by the spacing separation distance
3. For example: 3 x (500' / 5') = 300 spacers (4x2x2x4)
3
x
500
/
5'
Number
of Rows
x
Overall length
of duct bank
/
Spacer
separation
The low-cost, high-performance answer
MONOBLOC Spacers –
MONOBLOC spacers are also 10 times lighter than concrete
spacers which makes them easier to work with, reducing labour
Developed by IPEX, a world leader in piping systems, MONOBLOC
costs even more.
spacers are easier to handle, faster to install and cost significantly
The ideal solution for underground
duct bank installation
less than conventional vertical interlocking or concrete spacers.
Because MONOBLOC spacers do not vertically interlock, the spacers
Use fewer spacers
For more information or to be included on our mailing list for
new product announcements, complete this card and fax it
to us at (905) 403-1124.
Name
can be offset from row to row, creating a more stable duct bank
Title
using fewer spacers.
• 29 strong, lightweight spacer configurations
• Re-bar holder slot simplifies installation of re-bar
• Concrete-saving base spacer – 4x3x3x3
Dept.
A typical duct bank installation can be completed with
In addition to the significant savings in material costs, labour
two-thirds fewer spacers using MONOBLOC. For example,
costs are also dramatically reduced by eliminating assembly
only 300 one-piece MONOBLOC spacers are needed for
time needed for interlocking spacers. MONOBLOC spacers
a 500-foot long bank of four-inch duct, 4 wide by 3 high.
are supplied as one-piece units and are very simply installed.
A total of 1,200 spacers (base and intermediate) would be
Company
Address
City
Province
required for the same installation if interlocking spacers
were used – a 60 per cent savings in material costs alone.
Postal Code
The fast, easy, low-cost solution for underground electrical and telecommunications duct installations
Phone
The right solution!
is now even better.
Fax
E-mail
You can choose from 29 different configurations, so the right MONOBLOC spacer is
available for virtually any duct installation job.
Company classification:
Innovative design
Tough and resilient
Twenty-six of the 29 different MONOBLOC spacers can be used
Made of resilient, high-density polyethylene, MONOBLOC spacers
❏ Builder/Developer
interchangeably as either a base or intermediate unit.
easily withstand inclement weather and severe conditions normally
❏ Operator/Plant Maintenance
❏ Architect/Design Firm
Revolutionary approach
29 CONFIGURATIONS
Unique base spacer saves concrete
❏ Contractor
virtually eliminated. MONOBLOC spacers are resilient at extremely
❏ Distributor/Wholesaler
intermediate requirements for interlocking spacers are eliminated.
low temperatures. Tough and flexible, MONOBLOC spacers are
immune to corrosion, rust, mildew and humidity.
2" X 1 /2" X 1 /2" X 3"
(2 way)
It becomes easy to ensure that the right number of spacers are
3" X 11/2" X 11/2" X 3"
(2 way)
available at the job site so that work proceeds smoothly.
31/2" X 1" X 1" X 2"
(2, 3, & 4 way)
The ingenious design adapts to the inherent irregularities and
4" X 1" X 1" X 2"
(1, 2, 3, & 4 way)
contours of a trench with a wide support surface to ensure even
1
You can lower both material and labour costs with the 4x3x3x3
found on a construction site. Losses caused by breakage are
Time-consuming calculations involved in determining base and
1
of concrete in a 500-foot long, 30-inch wide duct bank.
4" X 1 /2" X 1 /2" X 3"
1
❏ Other: _______________________________________________
(2, 3, & 4 way)
Lightweight, durable and easy-to-install. Choosing MONOBLOC over
❏ Scepter Rigid PVC Conduit & Fittings
Plus, because MONOBLOC spacers fit the duct pipe and not
conventional spacers will significantly reduce the cost of your next
❏ Super Duct Power & Communication Duct
each other, there is no concern about possible conflicts between
underground electrical and telecommunications duct installation.
interlocking methods.
Specify MONOBLOC!
Re-bar innovation
4" X 2" X 2" X 3"
(1, 2, 3 & 4 way)
Reinforcing re-bar slots have been incorporated into 12 of the
4" X 3" X 3" X 3"
(2, 3 & 4 way)
4" X 3" X 3" X 4"
(2, 3 & 4 way)
41/2" X 2" X 2" X 3"
(1, 2, & 3 way)
29 MONOBLOC spacers. These provide better alignment and more
uniform distribution of re-bar in a duct bank, making duct bank
installation even faster and easier.
5" X 1 /2" X 2 /8" X 3 /8"
(1 way)
5" X 11/2" X 11/2" X 3"
(2, 3, & 4 way)
1
1
5
Pouring concrete
Different sized MONOBLOC spacers can be easily grouped to create
Ensure the duct bank is stable and secure before pouring
❏ Electrical Systems
the required width of duct bank.
concrete. Secure by looping the entire duct bank with tie
❏ Plumbing and mechanical piping systems
wire or by securing the ducts to the spacers and reinforcing
❏ Municipal pressure and gravity piping systems
A
B
one 2-way spacer and one 4-way spacer or two 3-way spacers.
E
C
I would also like to know about other IPEX products:
❏ PE Electrofusion systems for water
bars, if used.
❏ Industrial process piping systems
D
E
Arceaux
Longueur
E
Arceaux
Longueur
Longueur
MONOBLOC spacer
MONOBLOC with re-bar slots (multi-purpose)
MONOBLOC with re-bar slots (base)
Avoid “harsh pours”
of concrete directly
C
B D
D
❏ SceptaCon Trenchless Raceway
❏ Cor-Line/Kwikon ENT & Fittings
create one 4-way spacer. A 6-way duct bank can be created using
A
❏ FiberTel HDPE Duct
Maximum flexibility
For example, two 2-way spacers can be used in combination to
C
I would like more information on:
❏ Sceptalight Nonmetallic Light Fixtures
*consult the IPEX Monobloc price list for product codes and pricing
A
❏ OEM - Product(s) Manufactured: ______________________________
Specify MONOBLOC Underground
Duct Spacers
load distribution.
1
❏ Government
❏ Utility
MONOBLOC base spacer. By reducing concrete requirements one inch
in duct bank encasements, this base spacer can save four cubic yards
❏ Engineering Firm
A 6-way duct
bank is created
using one 2-way
spacer and
one 4-way
spacer
on the duct bank
assembly. Use a
diverting mechanism
during the pour to
ensure the duct
bank assembly
is not disturbed.
w w w. i p ex e l e c t r i c a l . c o m
fax: (905) 403-1124
Calculating MONOBLOC
spacer requirements
SALES AND CUSTOMER SERVICE
Vancouver
Tel (604) 534-8631
Fax (604) 534-7616
Toronto
Tel (905) 670-7676
Fax (905) 670-5295
To determine the type and quantity of MONOBLOC spacers
Calgary
Tel (403) 236-8333
Fax (403) 279-8443
Montreal
Tel (514) 337-2624
Fax (514) 337-7886
Edmonton
Tel (780) 415-5300
Fax (780) 415-5358
Saint John
Tel (506) 633-7473 (PIPE)
Fax (506) 633-8720
Winnipeg
Tel (204) 633-3111
Fax (204) 633-3075
St. John’s
Tel (709) 747-7473 (PIPE)
Fax (709) 368-9111
required, you need to know:
• Duct size
• Minimum required spacing between the ducts in the duct
bank as specified by the engineer or project manager
• Duct bank configuration
• Duct spacer spacing: IPEX recommends every five
to seven feet, closer for larger duct banks and larger
sizes of ducts
Underground
Duct Spacers
Toll free in Canada
(866) 473-9462 (IPEX INC)
www.ipexelectrical.com
• Overall length of the duct bank
About the IPEX Group of Companies
For example:
As leading suppliers of thermoplastic piping systems, the IPEX Group of
Companies provides our customers with some of the world’s largest and most
comprehensive product lines. All IPEX products are backed by more than 50
years of experience. With state-of-the-art manufacturing facilities and
distribution centers across North America, we have established a reputation
for product innovation, quality, end-user focus and performance.
• 4-inch duct
• 2-inch spacing
between ducts
specified by engineer
Markets served by IPEX group products are:
• Duct bank configuration
• Electrical systems
– 4 wide by 3 high
• Spacer Separation – 5 feet
• Telecommunications and utility piping systems
• Length of duct bank – 500 feet
• PVC, CPVC, PP, ABS, FR-PVDF, PEX and PE pipe and fittings (1/4" to 48")
• Industrial process piping systems
• Municipal pressure and gravity piping systems
Determine the type of
MONOBLOC spacer required
• Plumbing and mechanical piping systems
• PE Electrofusion systems for gas and water
• Industrial, plumbing and electrical cements
Based on this example, the MONOBLOC spacer required is:
4
x
2
x
2
Size of
Duct
(inches)
x
Vertical
Spacing
(inches)
x
Horizontal
Spacing
(inches)
x
3*
4-Way
Ground
Number
of Ways
x Clearance
(inches)
• Irrigation systems
Products manufactured by IPEX Electrical Inc.
E L E C T R I C A L
S Y S T E M S
This literature is published in good faith and is believed to be reliable.
*Ground clearance is a characteristic of the specific spacer selected.
Consult the MONOBLOC price list.
However, it does not represent and/or warrant in any manner the information
and suggestions contained in this brochure. Data presented is the result of
laboratory tests and field experience.
Calculating the number of
MONOBLOC spacers required
For fast, easy, economical installation
of underground duct banks
A policy of ongoing product improvement is maintained. This may result in
modifications of features and/or specifications without notice.
1. Count the number of MONOBLOC spacer rows
(Three-high in this example)
2. Multiply the number of rows by the overall length of the
DISTRIBUTED BY
duct bank divided by the spacing separation distance
3. For example: 3 x (500' / 5') = 300 spacers (4x2x2x4)
3
x
500
/
5'
Number
of Rows
x
Overall length
of duct bank
/
Spacer
separation
• Widest range of spacers available
• Quick, simple installations
• Lowest cost duct spacer system available
w w w. i p exe l e c t r i c a l i n c . c o m
BRELMBIP080604R © 2009 IPEX EL0033C
We build tough products for tough environments®